We are proud to introduce a new innovative fin design that is exclusive to STC - our new "Vortex Fins". These highly innovative fins are computer designed with hydrodynamic forces at the centre of the design brief. The unique curved tips on the outer fins are designed to reduce Induced Drag in much the same way that wing tips on modern aircraft work. With reduced induced drag these fins allow for increased speed giving you the maximum edge for aerial maneuvers and performance surfing. "Vortex" fins are a hex core fin and have a 113mm Base X 114mm Depth (Large size). They are light in weight and have superior flex capabilities. There are two designs, Green and Black Swirl or Aqua Blue Swirl. At just $90, these fins will not disappoint and they will deliver awesome performance time and time again.